1; RUN: llc < %s -filetype=obj -o %t 2; RUN: llvm-dwarfdump %t | FileCheck %s 3 4; C++ source to regenerate: 5; $ cat t.cpp 6; struct A { 7; void thiscallcc(); 8; }; 9; void A::thiscallcc() {} 10; void cdeclcc() {} 11; void __fastcall fastcallcc() {} 12; void __stdcall stdcallcc() {} 13; void __vectorcall vectorcallcc() {} 14; $ clang -g t.cpp -emit-llvm -S -o t.ll -O1 15 16; CHECK: .debug_abbrev contents: 17 18; CHECK: [[subroutine_abbrev:\[[0-9]+\]]] DW_TAG_subroutine_type DW_CHILDREN_yes 19; CHECK-NEXT: DW_AT_type DW_FORM_ref4 20; CHECK-NEXT: DW_AT_calling_convention DW_FORM_data1 21 22; CHECK: .debug_info contents: 23 24; CHECK: DW_TAG_subroutine_type [[subroutine_abbrev]] * 25; CHECK-NEXT: DW_AT_type [DW_FORM_ref4] {{.*}} 26; CHECK-NEXT: DW_AT_calling_convention [DW_FORM_data1] (DW_CC_BORLAND_msfastcall) 27 28; CHECK: DW_TAG_subprogram [{{.*}}] * 29; CHECK: DW_AT_low_pc 30; CHECK: DW_AT_high_pc 31; CHECK: DW_AT_frame_base 32; CHECK: DW_AT_linkage_name 33; CHECK: DW_AT_name 34; CHECK: DW_AT_decl_file 35; CHECK: DW_AT_decl_line 36; CHECK: DW_AT_calling_convention [DW_FORM_data1] (DW_CC_BORLAND_msfastcall) 37; CHECK: DW_AT_type 38; CHECK: DW_AT_external 39 40; ModuleID = 't.cpp' 41source_filename = "t.cpp" 42target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32" 43target triple = "i386-pc-windows-msvc19.0.23918" 44 45@"\01?fptr@@3P6IHHH@ZA" = global i32 (i32, i32)* @"\01?f@@YIHHH@Z", align 4 46 47; Function Attrs: nounwind readnone 48define x86_fastcallcc i32 @"\01?f@@YIHHH@Z"(i32 inreg %a, i32 inreg %b) #0 !dbg !12 { 49entry: 50 tail call void @llvm.dbg.value(metadata i32 %b, i64 0, metadata !14, metadata !16), !dbg !17 51 tail call void @llvm.dbg.value(metadata i32 %a, i64 0, metadata !15, metadata !16), !dbg !18 52 %add = add nsw i32 %b, %a, !dbg !19 53 ret i32 %add, !dbg !20 54} 55 56; Function Attrs: nounwind readnone 57declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #1 58 59attributes #0 = { nounwind readnone "disable-tail-calls"="false" "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="pentium4" "target-features"="+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" } 60attributes #1 = { nounwind readnone } 61 62!llvm.dbg.cu = !{!0} 63!llvm.module.flags = !{!9, !10} 64!llvm.ident = !{!11} 65 66!0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus, file: !1, producer: "clang version 3.9.0 (trunk 272067)", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, globals: !3) 67!1 = !DIFile(filename: "t.cpp", directory: "D:\5Csrc\5Cllvm\5Cbuild") 68!2 = !{} 69!3 = !{!4} 70!4 = distinct !DIGlobalVariable(name: "fptr", linkageName: "\01?fptr@@3P6IHHH@ZA", scope: !0, file: !1, line: 2, type: !5, isLocal: false, isDefinition: true, variable: i32 (i32, i32)** @"\01?fptr@@3P6IHHH@ZA") 71!5 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !6, size: 32, align: 32) 72!6 = !DISubroutineType(cc: DW_CC_BORLAND_msfastcall, types: !7) 73!7 = !{!8, !8, !8} 74!8 = !DIBasicType(name: "int", size: 32, align: 32, encoding: DW_ATE_signed) 75!9 = !{i32 2, !"Dwarf Version", i32 4} 76!10 = !{i32 2, !"Debug Info Version", i32 3} 77!11 = !{!"clang version 3.9.0 (trunk 272067)"} 78!12 = distinct !DISubprogram(name: "f", linkageName: "\01?f@@YIHHH@Z", scope: !1, file: !1, line: 1, type: !6, isLocal: false, isDefinition: true, scopeLine: 1, flags: DIFlagPrototyped, isOptimized: true, unit: !0, variables: !13) 79!13 = !{!14, !15} 80!14 = !DILocalVariable(name: "b", arg: 2, scope: !12, file: !1, line: 1, type: !8) 81!15 = !DILocalVariable(name: "a", arg: 1, scope: !12, file: !1, line: 1, type: !8) 82!16 = !DIExpression() 83!17 = !DILocation(line: 1, column: 29, scope: !12) 84!18 = !DILocation(line: 1, column: 22, scope: !12) 85!19 = !DILocation(line: 1, column: 43, scope: !12) 86!20 = !DILocation(line: 1, column: 34, scope: !12) 87